I have a Jeep Cherokee with an RE 4.5 lift kit, 32 inch tires. There is a popping noise coming from the steering box area, which I have isolated to the track bar mounting bracket. All bolts on the bracket are tight, but the bracket appears to be moving, possibly as a result of the uni-body flexing. I have heard this noise can be caused by cracks that develop around the steering box, but have not seen any. Is it possible that this noise is being caused by movement of the frame rail near the steering box? If so, how do I fix this. I have considered getting a new front bumper which supports the steering box or possibly a new HD RE trackbar and bracket because the bracket doesn't appear to be in good shape. Any ideas? Thanks in advance.